Home / 8,003,876.40-11,037,888-7,409,400.36

Finding the Fourth Proportional to 8,003,876.40, 11,037,888 and 7,409,400.36

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Solution

The fourth proportional to 8,003,876.40, 11,037,888 and 7,409,400.36 is: 10,218,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003,876.40 : 11,037,888 = 7,409,400.36 : x
  2. Step 2: Convert to fraction form
    8,003,876.40/11,037,888 = 7,409,400.36/x
  3. Step 3: Cross multiply
    8,003,876.40x = 11,037,888 × 7,409,400.36
  4. Step 4: Simplify right side
    8,003,876.40x = 81,784,131,320,839.69
  5. Step 5: Solve for x
    x = 81,784,131,320,839.69/8,003,876.40
  6. Step 6: Final answer
    x = 10,218,065.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.